Jacket for incubator lamps



'Mach 26, 1929. yF. E. coA'rswoRTH JACKET FOR INCUBATOR LAMPS' Fileld July 17, 1928 vision of a lamp jacket of such design that4 Y the bail latch.

Patented Mar. ZF6, 1929.

i. UNITED STATES i FRANK E. COATSWORTH, OF LINCOLN, NEBRASKA.

JACKET non INCUBATOR LAMPS.

Application led July l17,

tor' lamps and its primary object isv My invention relates to lamp jacket-s for in cu a the provision of a lamp support which is so arranged as -to reduce to la minimum all danger connected with the use of such lamps. y

An important object of my invention is the provision of a hinged base for supporting the lamp, the base being provided lwith ya latch which must be released iny order to` remove the lamp to a safe place/for filling the lamp. j v

Another important object which I have in view is the provision of a novel form of latch for the base,.the latch being so designed that accidental unlatching is impossi le.

Another obj ect of the invention is the prothe lamp cannot be filled while itis in place on. the incubator, the iiller plug being inaccessible while the lamp' is in operative position. v l

Having in' view these objects and others which will be pointed out in the following description, I will now refer to the drawings, in which f j j Figure lis an illustration of the lamp jacket and showing the lamp in its operative position within the jacket.Y V

y Figure 2 sa View in side elevation of :the lamp jacket and Uof the lamp as .they lappear while in use. i u.,

Figure 3 isa view similarto Figure 2 but showing theposition of the base in its relation to the jacket when it is desired to release vFigure I4 is. another view similar to Figure Y2v but showing Y the bail released? from en gagement with'the base so that the base may be dropped on its hinge.4 Figure 5 is another View similar t-o Figure ZbutV showing the base entirely released so that thelamp may be inserted or withdrawn. Figure 6 isa view in perspective ofthe base of the the rib construction on its inner side.

The heater shown in the drawings lis the conventional water heater for hot water in- .cubators but lit will be evidentffromr the following.,descriptionwthat thestructure dee scribed is equally applicable to air heaters or other types offheaters. As, shown, the heater includes a water receptacle 10 having a central flue 11 forU the upward passage of the gasesof combustion. The water receptacle is provided with .aV pair of wings 12 eyelets `for strengthening purposes.

jacket kand .showing particularly 1928. Serial No. 293,468.

having 'means whereby the kwater heater and the lamp support may be secured to the outer wall of the incubator.

Secured to the back of the water receptacle is Vthe jacket 13, this extending downwardly to some distance therefrom. The back wall 13 .of the lamp jacket is substantiallysemi- 'cylindrical in -t'orm and of avsize such that the lam 14,may fit freely thereinwith the lamp ciimney 15y projecting upwardly a short distance into the lue 11'. The supporting base 16 ot' the lampjacket is hinged to the rear wall 13 at 17 so that it may occupy either the osition shown in Figure 2 or that shown in :igure k5. The structure of the base is best shown in Figure 6, the base being pan-shaped and having one or more supporting ribs 18 which terminate slightly below the top'edge of the basev so that the lower .edge of the lamp 14 will be seated -slightly .within the base 16 as yShown vin dotted lines in Figures 2, 3 and 4. i

The latching device for latching and releasingthe base 16 comprises a bail'19 of the i'ormwhich .is bestshown in Figure 1,

f the illustration being slightly exaggerated in f order to emphasize the construction of the.

bailand its relation to the lamp jacket and base.V As will be seen from that figure, the

bail 19 has itslower horizontal portion of the base 16 in the manner shown in Figure 3. In other words, these sidearms determine? the radius otmovenient and this radius is less than the distance fromV the pivot to-the lforward'lower edge lof the base 16. For

additional protection I employ a pivoted latch 21 butl the bail arrangement as de- `a lengthless vthan the diameter of the base v scribed is alone sufficient to prevent any-ace,"

cidenta'l vdisplacement of the lamp. j

' lThe lamp .is seated on the base 16A and within thejacket13 in such-a manner Vthat the Vfiller plug 22 vkisinaccessible while the "lamp is within the jacket. In order to till ythe lamp it is necessaryr to entirely remove the lamp from the: jacket, and the hinged base makes it absolutely impossible to utilize the base as a temporary but insecure support whilepouringoil into the lamp. To

remove the lamp, it is necessary to force the forward end of the base upwardly in order to provide suiiicient clearance i'or theV bail 19. When this is done., as shown in Figure 3, the bail may be made to clear the base as shown in Figure 4l and the lamp must then be supported by hand when the` base drops as shown in Figure 5. The user then has no alternative but to remove the lainp entirely to some more suitable support while filling it. He then returns the lamp to the position shown in Figure 5, thrusts thechinineyaipward t-o the iiue 11 and then raises the base to a suilicient height so that he can force the bail into its latching position. There is noy danger of his forcing the bail rearwardly to such an extent as to permit the base'le to drop because the bailL is so pro- Y without iirst dropping thejbase 16.

A. being such that the lamp can not be removed y f portioned that its rearward movement is limited.` This construction also prevents accidents which might occur by careless dis* placementof `the bail while the lamp is in use. Nor can the bail jbe moved 'forwardly without conscious effort on the part of the operator, its relation .with the base being such that the forward portion of the lbase must be 'lifted beforethe bail latch can be* released. The lamp chimney l5 extends into the flue yl1 a suiiicient distance so that the lamp cannot be withdrawn Jrom the jacket This also is important as careless operators would otherwise be tempted to rest the lamp on the free edge of the base ywhile filling it.

Having thus described my invention in ysuch full, clear, and exact terms that its construction and operation will be readily understood by others skilled in thel art to which it. pertains, what I claim as new and desire to secure by Letters Patent of the United States is: y Y Y 1. A supportfor incubator lampsvincluding a jacket, a member projecting forwardly from the upper portion'oiI lsaid jacket and secured thereto, said member being adapted to encircle the top portion of the lamp chim- Vney, a rforwardly projecting baise hinge'dly said jacket for supporting the lamp, the distance between said member and said basesaid bail is limited.u j 5. A support for incubator. lampsiiiclud- 'edge oifv said base.

wardly projecting base hingedly secured to` said' jacket for supporting the lamp, and a` n bail having its end portions pivotally secured to said jacket and depending therefrom, said baill being adapted' to engage theunder side of said base for holding said Vbase in supporting' position. j 4. A support for incubator lamps ineluding ajacket and a forwardly projecting lbase hingedly secured thereto, said base being adapted vto support an incubator lamp when said base is .in horizontal position, ade*v pending bail pivotally connected Vat'its free extremities to said jacket and having a hori.-v` l zontal holding 'portion for engaging the j,

under side of" said base'wlien said'V base isin supporting position, the lengthof saidholding portion being' lessthan the diameter of said base whereby the rearwardmovement inga acket and a forwardly projecting ,base hingedly securedV thereto, said. base being adapted'to support an incubator lamp when 'said'base isin horizontal position, a depend- Y ing bailv pivotally coiinected'at its freeex- 'Y tremities to said rearpwall and having a horizontal holding portionforI engaging'the under side of said basevwhen said base; is in supporting position, the lengthof said hold-Y Y ing portion beingless'fth'arr the diameter of said base `whereby the-rearwardv'movenrent 'Y of said bail is limited, the radius of .movement of" said-bail being, less than the 'distance from the pivots thereofltolthe'forward j Y 6. A support forincubator'lampsinclud- 'Y ing a jacket of semi'cylindrical form and, aY

forwardly `projecting nfiember, secured to the upper portion thereof,-A said `member being adapted to encircle the top-portion of. the'i lamp chimney a forwardly projecting ansliaped base liingedly secured tojsai'd 11gie'ar wall for supporting the lamp therein, and a bail havin itsendvportionspivotally secured Y to said jac et and depending therefrom', said" bail being adapted to engageI the junder side of said base for holding saidbase in 'Supporting position. j j. j A

, In testimony whereof I affix my signature. 

